Is the second sentence of Article 23(1) of Regulation (EC) No 1008/2008 of the European Parliament and of the Council of 24 September 2008 on common rules for the operation of air services in the Community 1 to be interpreted as meaning that an online check-in fee and an ‘administration fee’ for credit card purchases, which are additional to the price of the ticket, and the VAT applied to air fares and to optional supplements for national flights, fall within the category of unavoidable, foreseeable or optional price supplements?

Is the fourth sentence of Article 23(1) of Regulation No 1008/2008 to be interpreted in the sense that the word ‘optional’ covers price supplements which the majority of consumers are able to avoid?

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1 Regulation (EC) No 1008/2008 of the European Parliament and of the Council of 24 September 2008 on common rules for the operation of air services in the Community (Recast) (OJ 2008 L 293, p. 3).